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Dennis_Churaev [7]
3 years ago
9

A scientist wrote down the steps to perform a chemical experiment, but they are out of order. Help the scientist by rearranging

his steps in the correct order. Measure out 0.3 grams each of the solids, lead nitrate and potassium iodide. Watch mixture change from clear to a yellow solid and record observations. 1 Measure 100 ml distilled water into each of two beakers. 1 Write a science report detailing results and conclusions. Dissolve each solid in a separate beaker of water. Pour both solutions into one container and slowly stir. Create a presentation and share findings with peers. Predict what happens when lead nitrate reacts with potassium iodide.​

Chemistry
1 answer:
ohaa [14]3 years ago
8 0

Answer:

predict what's going to happen

measure 100 million distilled water into two beakers

measure out 0.3 grams each

dissolve each solid in a separate beakers of water

pour both solutions into one containers

watch mixture change

write a science report

make a presentation and share with peers

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Answer:

Vertebrates, invertebrates, and amphibians.

Explanation:

Vertebrates have backbones. Frogs have back bones.

Invertebrates do not have backbones. Hermit crabs do not have back bones.

Amphibians are cold-blooded vertebrate animals. Frogs are cold-blooded vertebrate animals.

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Why is butanone achiral?
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Explain how the concept of the “survival of the fittest” relates to the theory of evolution.
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3 years ago
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Look up and record the boiling point of acetic acid, and explain why only some of it evaporates from the reaction mixture.
REY [17]

Answer:

Heating the mixture to a temperature above the boiling point of acetic acid, but below 100°C (the boiling point of water). The vapours from the acetic acid rise, and go into a tube. They are then condensed within the tube, and run off into a separate storage area. Because water can exist as a gas at pretty much any temperature above 0°C, it will result in an impure mixture, but repeatedly doing this will get the acetic acid to the desired purity.

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Las capas del lecho marino del Mar Mediterráneo cuentan la historia de los cambios ambientales en el hoy desértico norte de Afri
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Answer:

160.000 años corresponde a 16.000 décadas.

Explanation:

Para resolver correctamente el ejercicio debemos plantear la regla de tres simple de la siguiente manera:

1 década equivale a 10 años; A cuantas decadas equivalen 160.000 años?

1 década→10 años

          x    ←160.000 años

Debemos multiplicar 160.000 por 1 y luego dividir entre 10 ;

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